Destinator Points of Interest (.dat) (destinator_poi)

This format can...

read and write waypoints

Support for Destinator™ binary POI files (.dat).

The basic information was found at mozoft.com.
GPSBabel can read and write all fields described at this document. Please note that 'house number' isn't
supported as a separate field. This field, if available in any source file, will be stored together with 'street'
into GSPBabel's internal 'address' field.